So far in the Wii's short life span Nintendo has already released or announced a game from most of it's core franchises.
Super Mario Galaxy (Super Mario Bros.)
Mario Party 8 (Mario Party)
Super Paper Mario (Paper Mario)
Mario Strikers Charged (Strikers)
Mario Super Sluggers (Baseball)
Wario Ware Smooth Moves (Wario Ware)
Wario Land Shake It (Wario Land)
Super Smash Bros. Brawl (Smash Bros.)
The Legend Of Zelda: Twilight Princess (Zelda)
Donkey Kong: Barrel Blast (Donkey Kong)
Pokemon: Battle Revolution (Pokemon)
Metroid Prime 3: Corruption (Metroid)
Battalion Wars II (Famicom Wars)
Fire Emblem: Radian Dawn (Fire Emblem)
Animal Crossing: City Folk (Animal Crossing)
So what does that leave them with as far as theri established franchises go?
Mario Golf (prolly waiting on Wii Motion +)
Mario Tennis (prolly waiting on Wii Motion +)
Kirby (Rumors are flying but still nothing concrete)
Star Fox (No word on a Wii version, although its likely, prolyl with another peripheral, flight stick?)
F-Zero (Miyamoto said this wouldent work well on Wii)
1080 (If Ubisoft can)
Kid Icarus (Come on ppl they havent touched this since 91)
Pikmin (IMO, Miyamoto's next project after Wii Music ships)
So what I ask you is, has Nintendo pushed all it's franchises out the door to early?
